←back to thread

555 Timer Circuits

(www.555-timer-circuits.com)
280 points okl | 2 comments | | HN request time: 0.399s | source
Show context
lmpdev ◴[] No.41891546[source]
We sell kits with plenty of 555 timers (including some listed here)

It’s a shame that Arduino has effectively truncated kids learning with a full MCU as the “building block” of their learning

I see it also bite them in the arse with wasteful solutions. Often a BJT or power fet is all they need (say for a basic relay trigger). But if they aren’t presented with a shiny arduino compatible module explicitly designed for what they want, they get nervous

About half the kids I see make the intellectual jump, half end up not coming back

I do wish kids were taught basic soldering, it would make the learning process a lot less worrisome

The 555 and LM741 are still supreme learning tools. They are even simple enough to breadboard out with BJTs and analogue components. I’ve only seen a few extremely hardcore guys bother to conceptualise under the hood that deeply

replies(9): >>41891585 #>>41891780 #>>41891860 #>>41891951 #>>41892689 #>>41893425 #>>41895057 #>>41896842 #>>41906364 #
1. guerrilla ◴[] No.41893425[source]
Link to your kits?
replies(1): >>41893642 #
2. stonethrowaway ◴[] No.41893642[source]
Seconding this.